近日，香港理工大学李明杰团队报道了室温下钙钛矿超晶格的手性超荧光。2026年6月3日出版的《自然》杂志发表了这项成果。

超荧光（SF）是相互作用的量子发射体集合所发出的强烈、相干光的集体辐射现象。尽管人们已在数种固态材料中观察到超荧光，但来自手性材料的自发产生圆偏振超荧光（手性超荧光）尚未实现。

研究组报道了在室温下，大面积（>100 µm × 100 µm）、垂直排列的手性钙钛矿超晶格中，观察到源自边缘态的手性超荧光。理论量子光学计算描述了从初始非极化、非相干的自发辐射到相干手性超荧光态的转变，定量复现了实验中观察到的圆偏振产生（高达约14%）以及其符号随材料手性相反发生反转的现象。此外，研究组还发现，手性超荧光的强度和圆偏振度均可通过弱磁场进行调制，从而能够在室温下实现对固态量子发光发射的精确控制。该研究结果揭示了手性与多体量子相干性之间的相互作用，为手性控制的量子光学应用开辟了新的有前景的方向。

附：英文原文

Title: Chiral superfluorescence from perovskite superlattices at room temperature

Author: Wei, Qi, Peter, Jonah S., Ren, Hui, Wang, Weizhen, Zhou, Luwei, Liu, Qi, Ostermann, Stefan, Yin, Jun, Cai, Songhua, Yelin, Susanne F., Li, Mingjie

Issue&Volume: 2026-06-03

Abstract: Superfluorescence (SF) is the collective emission of intense, coherent light from an interacting ensemble of quantum emitters1,2,3,4. Although SF has been observed in several solid-state materials5,6,7,8, the spontaneous generation of circularly polarized SF from chiral materials (chiral SF) has not been realized9,10. Here, we report the observation of chiral SF originating from edge states in large-area (>100μm×100μm), vertically aligned chiral perovskite superlattices at room temperature. Theoretical quantum optics calculations describe the transition from initially unpolarized, incoherent spontaneous emission to a coherent chiral SF state, quantitatively reproducing both the experimentally observed generation of circular polarization (up to about 14%) and its reversal of sign with opposite material handedness. Moreover, we show that both the intensity and the degree of circular polarization of chiral SF can be modulated by a weak magnetic field, enabling precise control over solid-state quantum light emission at room temperature. Our findings demonstrate an interplay between chirality and many-body quantum coherence, thereby showing promising new directions for chirality-controlled quantum optical applications.

DOI: 10.1038/s41586-026-10637-x

Source: https://www.nature.com/articles/s41586-026-10637-x

期刊信息

Nature：《自然》，创刊于1869年。隶属于施普林格·自然出版集团，最新IF：69.504

官方网址：http://www.nature.com/

投稿链接：http://www.nature.com/authors/submit_manuscript.html